Filling-thread-cutting device for weft-replenishing looms.



I B. F. McGUINESSr FILLING THREAD CUTTING DEVICE FOR .WEPT REPLENISHING LOOMS.

APPLICATION FILED APR... 11. 1907.

939,433, Patented Nov. 9, 190 9.

2 SHEETS-45112111 1.

when sra r'ns PATENT Corsica.-

BENJAMIN F. McGUINESS, F woncnsrnn, MAssAcHusET'rs; assxcnoa r0 cnoivrrron- & KNOWLES LOOM WORKS, A CORPORATION OF MASSACHUSETTS.

FlIIiLING-IHREAD-GUTTING DEVICE FOR WEFT-REPLENI SHlNG LCOMS.

decimation of Letters Patent. 't t v, 9, 1909,

Application m spa-u 11 190?. Serial No. 367,429..

To all whom it may concern:

Be it known that I, BnNJA rN F. Md Gnixnss, a citizen of the United'states', residing at Worcester, in the county of W'orcester and State of Massachusetts, have invented certain new and useful Improve stantial exhaustion of the filling on the bobbin in the shuttle; said thread cutting mechanism. being adapted to cut the filling thread on the substantially exhausted bobbin, which is to be removed from the shuttle.

The object of my invention is to provide an improved filling thread cutting mechanism, adapted to be applied to and used on looms of the class referred to, of any usual and well known const ction.

In my improvem I preferably provide a. cutting mech msm having jaws to catch and hold the filling thread leading from the goods being. woven to the practically exhausted bobbin, near the edge of the goods, and also cutting blades to. cut

the thread contiguous to the holding jaws.

The holding jaws and cutting blades of my cutting mechanism are normally closed, and are positively opened to receive the filling thread, and are yieldingly closed by a spring to hold and cut the filling, thread. My improved filling thread cutting mechanism also acts to prevent the operation of the transferring mechanism, in case the shuttle is not properlyboxed on the magazine end of the loom.

In my. improvements, as described herein, I combine my fillingthread cutting mechanism with the transferrer mechanism, so that when the bunter of the transferrer mechanism is raised into a position tojbe engaged by the dagger on the lay, the cut-tingmechanism, through connections to the huntermechanism, is moved toward the selvage of the goods and into operative position, and as the lay moves forward toward the front of the loom, a roll or other suitable device shown in Fig.- 2,

- carried on the lay, engages and positively opens the holding jaws and the cutting blades, and allows ,the filling thread to pass 1 between them, and the closing of said jaws and blades by a spring, as the roll is disengaged therefrom, on the continued forward movement of the lay, will hold said thread and also cut it at the sametime, and before the bobbin is discharged from the shuttle.

The engagement of the dagger on the lay,

. with the hunter of the tI'HJISfQI'lBl mechanism, to operate the transferrer mechanism and transfer a bobbln from the magazine into a shuttle, Wlll move my filling thread of the class referred to, with my improvements in filling thread cutting mechanism applied thereto, sufficient to enable those skilled in the art to understand the construction and. operation thereof.

Referring to the drawings :Figure- 1 is an inner side view of a'detached portion of a magazine stand or support, and the hunter of .the transferrer mechanism, and my improvements in" filling thread cutting mechanism combined therewith, and a sectional view of the lay beam with a shuttle thereon. Fig. 2 corresponds to Fig. 1, but shows the cutting mechanism in its operative position, preparatory to holding and cutting the fillmg thread; the hunter, and other parts shown in Fig. 1 are not shown in this. figure. Fig.1) shows the holding jaws and cutting blades in their closed posltion. Fig. 4 shows, on an enlarg'ed scale, the cutting mechanism looking in the direction of arrow 0-, Fig. 5; the broken lines indicate the inoperative position of thelever carrying saidmechanism. Fig. 5 is an edge view cutting mechanism to its inoperative posi of the cutting mechanism shown in Fig. 4,

looking in the direction of arrow 12, same figure. Fig. 6 shows the opposite side of the cutting mechanism shown in Fig. 4, and looking in the direction of arrow c, Fig. 5.

Fig. 7 is a plan view of the upper part of Fig. 5, looking in the direction of arrow 61, same figure,-showing a difierent position of the lever hub.

In the accompanying drawings, is the lower detached portion of the stationary stand for the rotary magazine, not shown, which stand is secured to the loom side, not shown, in the usual way.

2 is'the lower arm or the transferrer arm, not shown, which has its hub 2 loosely mounted on a bolt 3 secured in a stand at, bolted on the upper side of the breast beam, not shown, at the end thereof, in the usual way. The arm 2 has supported on its lower end, in the usual way, a hunter 5, which, through the operation of the filling detecting mechanism, not shown, on the practical or substantial exhaustion of filling in the active shuttle, is operated, and raised into the path of the dagger 6 on the front of the lay beam 7, in the usual and well known way, so that on the forward movement of c the lay, the engagement of the dagger 6 with the hunter v5 will cause the movement of the ,transferrer arm, totransfer a bobbin from the magazine intothe shuttle, in the usual and well known way. On the lay beam 7 is a shuttle box 8 for the shuttle 9.

All of the above mentioned parts may be of the usual construction in the class of looms referred to.

I will now describe my improvements in filling thread cutting mechanism combined with the parts above mentioned.

The stud 3 has loosely mounted thereon the hub 10' of a lever-10,,which has a rearwardly and downwardly extending arm 10" thereon, the lower'end of which, in this instance carries a bolt 11, which is adjustable in an elongated slot or opening 12 in a plate 12. The plate 12 is pivotally attached at its lower end bya pin 13 to the lower end of a second plate 14. The upper end of the plate 1 1 is yieldingly connected by a helically coiled contraction spring 15 to the upper end of the plate 12. Between the plates 12 and 14 extends the knob or projection 5 on the hunter 5, see Fig. 1 and said plates 12 and 14;; form a yielding connection between the hunter 5 and thelever 10. The upper end of the lever 10 has, in this instance an elongated slot 10- therein,

' through which extends a bolt 16' adjustably v secured therein, which is pivotally connected to a rod head 16 on one end of a rod or connector 16. The other end of the rod'or connector 16 has a rod head 16" thereon,

which-is pivotally connected, through a pm 17, with the upper end of a centrally pivoted lever 18, see Fig. 1.

The lever 18 has a hub 18, see Fig. 5, which is loosely mounted on a stud 19 secured in the stationary stand 1. The hub 18' has in this instance a V shaped recess 18" on its inner end, see Fi 7 which is adapted-to ing V shaped extension 20 on a collar 20, secured on the stud 19 by a set screw 21. A helically coiled tension and expansion ring 2211s secured at one end to a collar 23 est-on the end of the stud 19, and

at its other end to the hub 18' of the lever 18. The spring 22 acts to yieldingly hold the hub 18 in engagement with the collar 20, and to return the lever 18 carrying the cutting mechanism, to its normal position, with the cutting mechanism in its inoperative position, after said lever has been moved by the raising of the hunter. The movement of the lever 18, through the hub 18 engaging the collar 20, will move the hub 18 and lever 18 to the left, as shown in Fig. .7, and also the cutting mechanism, and thus reduce the distance of the cutting mechanism from the selvage of the goods, when the cutting mechanism is in its operative position, so that i there will be no unnecessary strain on the filling thread leading from the goods, when it is held and cut, as the lay beats up.

I will now describe my holding and cutting mechanism.

()n the lower end .of the lever 18 is sccured, in this instance by a bolt 24., the upper end of a plate 25, which preferably has an offset 25' therein, as shown in Fig. 5. The lower end of the plate 25 has a stud or screw 26 therein, on which is loosely mounted the lower holding or clamping jaw 26. The upper holding or clamping jaw 27, see Fig. 4, is riveted or otherwise attached to the front side of the plate 25, above the lower clamping jaw 26. Both clamping -jaws 26 and 27 are preferably made of fiber, or other suitable material, having engaging surfaces 26 and 27' thereon, to hold the thread when it enters between said' clamping jaws, as shown in Fig. 2.

A spirally coiled contraction spring 28, attached at one end by a screw 29 to the plate 25, and at its other end to one end of the lower jaw 26, acts to move said jaw 26 toward the stationary jaw 27 as shown in Figs. 1 and 3. The lower clamping jaw 26 has two screws 30 thereon, which extend into angular or cam shaped slots 31 in a slide or plate 31, and attach said slide to said lower slide or plate 31 extends into the ath of and is ada ted-to be engaged by a rol 32, mounted an adapted to rotate on a stand or arm 33 secured to the front side of the lay beam 7, see Fig. 2.

On the opposite side of the supporting plate 25, from the clamping jaws 26 and 27, are located the two cutting blades 3a and 35, see Fig. 6. The upper cutting blade 34 is in this instance riveted or otherwise ri idly secured to the plate 25. The lower blade 35 has a hub 35', see Fig. 5, which is loosely mounted on a screw or stud 36, secured to the plate 25. A helically coiled expansion sprin encircles the bolt 36, and bears at one on againstiizhe head thereof, and at the other end against the outer end of the hub 35', and acts to yieldingly move inwardly the lower cutting blade 35, and hold it in proper posiclamping jaw 26. The lower edge of the I eeeaes tion relatively to the cutting blade 34. To the lower cutting blade 35, on theopposite side of its pivotal support from its cutting edge, is secured a plate38 having an angular or cam shaped slot 38' therein, into which extends a pin 39 on the lower clamping jaw 26. The movement-of the lower clamping jaw 26, through the engagement of the pin 39 thereon with the slot 38" in theplate 38, causes the movement of the ,lower cutting blade 35, and moves it toward the'upp'er cutting blade 34, to out or sever the fillin thread, and also moves it away from sai upper cutting blade.

From the above description in connect-ion with the drawings the operation of my improvements will be readily understood byv those skilled in the art; g 1

In the normal operation of the loom, the cutting mechanism will be in its inopera-' tive position, as shown in Fig. 1, but when the hunter 5.is raised, through the operation of the filling detecting mechanism, to'beflin a. position to be engaged by the dagger 6,

then through the plates 14 and 12,'and arm 10 on the lever .10, and rod or connector 16 to. the lever 18, said lever 18, and theclamping and cutting mechanism carriedthereon, is movedrinto its operative position, as shown in Fig. 2. As the laymovesforward, the engagement of the roll 32 out-he stand 33 with the lower edge of the-slide or plate 31,v see Fig. 2, will causesaid plate and the outef end of the lower clamping jaw 26 to move'up'wardly, against the action of the spring 28, and move downwardly the I to act to move upwardly the clamping edge inner clamping end, of said jaw, and with it in the lower cutting blade 35, to leave. an'

. opening between the clamping jaws 26 and:

27, and the cutting blades 34'and 35, for the-entrance of the filling thread as the lay moves forward, as shown in'Fig. 2. When on the continued forward movement of'thelay, the roll 32 passes ofi' of the lower edge of the plate or slide 31, the'spring28 is free of the lower clamping aw 26, toclamp the thread between the lower and upper clamping jaws. The lower cutting blade 35 moves upwardly with the lower clamping jaw 26, and cuts the thread extending between .t-hejlclamping .jaws and the cutting blades.

On the rgturn backward movement of the lay, the roll 32 passes under the plate or slide 31, and raises said blade on the screws or studs 30, as shown in Fig. 3, without moving the lowerv clamping jaw 26. I The return of the hunter 5 to its forward lowered position, in the usual way, will, through intermediate connections to the cutting mechanism, move the cutting mechanism to its normal inoperative position shown in} Fig. 1.

In case, for any reason, the shuttle is not properly boxed, and extends beyond the inner end of the shuttle box, andthrough the operation of the filling detecting mechanism give way or yielding connection of the arm 10" on the lever 10, with the bunt-er 5, the

bunter 5 willbe moved into its lowered inoperative position.

'By reason of the hub 18" of, the lever 18 of the cutting. mechanism, having the V shaped recess therein, into which extends the V shaped extension on the collar 20 fast on the stationary stud 1-9, the rotation of the hub 18' on the stud 19, when the cutting mechanism .is movedi'nto its operative poso thatas the} lay beats up, and the fillinj thread passes between the holding jaws an 'sition, will cause the hub 18 and the lever Y the-c 'ttin'gblades, and the thread is held and c *t, there; will be no undue strain on the thread during the cutting operation,

which would occur ifthe cutting mechanism remained in the same position relative to the selvage [of the goods, as the lay heats up.

v Itiwill be understoodthatithe details of construction of myimprovements may be varied if'desired. p i

Having thus described my invention, what I claim as new and desire tosecure by Let-- ters Patent is a l i 1. In a weft replenishing loom, a filling thread cutting mechanism supported independentlyof the lay, and connected with the filling transferrer mechanism, and movedv inwardly toward'the selvage of the goods into operative position, preparatory to the transfer of filling, and subsequently moved outwardly and away from the selvage of the goods, and means .for moving said filling thread cutting mechanisminwardly and outwardly.

2. In a weft replenishing loom, a filling thread cutting mechanism supported independently of the lay, and connected with the filling transferrer mechanism, and moved inwardly toward the selvage of the goods,

.iuto operative position, preparatory to the transfer of filling,' and subsequently moved outwardly and away from the selva ge of the goods, and into position to be engaged by a shuttle not properly boxed, and means for moving said filling thread cutting mechanism inwardly and outwardly,

. 3. In a weft replcl'ii'shing loom, a filling threadcutting mechanism supported independently of the lay, and connected with the filling transferrer mechanism, and moved for positively opening said jaws.

inwardly toward the selvage of the goods, into operative position, preparatory to the transfer of filling, and subsequently moved outwardly and away from the selvage of the goods-and into position to be engaged bythe shuttle not properly boxed, and means for moving said fillin thread cutting mechanism inwardly an outwardly, said filling thread-cutting mechanism comprising two holdingnor. clamping jaws, and two cutting blades, normally yieldingly held in closed position, and means for yieldingly holding said jaws in closed position, and. positively opened to receive the filling thread on the forward beat of the lay, and means {.l. Iii a weft replenishing loom, a filling thread cutting mechanism, comprising two holding or clamping jaws, and two cutting blades, normally yieldingly held in closed position, and adapted to be positively opened 7 the filling thread, by engagement will move the cutting mechanism into its operative position.

which, a)

erative position, and the movement of which, t0 operate thetransferrer arm through the engagement of the dagger on the lay,- will move said cutting mechanism into its inop- 5. In a weft replenishing loom, a filling thread cutting mechanism, comprising two holding or clamping jaws, and two cuttim blades, normally yieldingly held in close( position,'and adapted to be positively opened to receive the filling thread, by engagement with a roll or device carried on the lay, on the forward beat of the lay, and yieldingly closed on disengagement rom said roll or device, said clamping jaws and cutting blades being supported on a plate attached to a lever, and said plate and lever, said lever pivotally mounted on a stationary stud, and its hub adapted to be rotated and moved longitudinally on said stud, and a springconnected with said hub, and connections intermediate said lever and the bunter of the transferrer mechanism,andsaid bunter, the movement of which into its raisedposition will move the cutting mechanism into its operative position, and the movement of operate the transferrer arm through the engagement of the dagger on the lay, will move saidicutting mechanism into its inoperative position, and a yielding connection between said bunter and the connections to the cutting mechanism.

BENJ. 1i McGUINESS.

Witnesses:

JOHN C. DEWEY, M. HAAS. 

